Armstrong International B4029-1 Kit

The Armstrong International B4029-1 Kit is a high-performance replacement float mechanism designed specifically for J and JD Series Float & Thermostatic Steam Traps, as well as associated condensate controllers and liquid drainers. This "mechanism less float" assembly features a precision-engineered 1 1/16" orifice and is optimized for systems with a maximum operating pressure of 15 PSI. By utilizing stainless steel internal components, the B4029-1 (which is technically identical to the D4029-1 model) ensures reliable condensate drainage and air venting in low-pressure industrial steam applications. Integrating this kit into your steam trap maintenance routine helps prevent common issues such as water hammer, localized flooding, and inefficient heat transfer. Designed for heavy-duty HVACR environments, it provides a precise valve and seat interface to maintain a tight seal against live steam while allowing rapid discharge of condensate. This ensures your Armstrong steam trap continues to operate at peak thermal efficiency without the need for a full unit replacement.

Key Benefits:

• Optimized Flow Control: The large 1 1/16" orifice is specifically sized for high-capacity 15 PSI systems to maximize condensate removal.
• Broad Compatibility: Seamlessly repairs Armstrong 15J8 and 15JD8 models, catering to both J and JD Series traps.
• Cost-Effective Maintenance: Replaces the internal lever mechanism and seat without requiring a new float or body housing.
• Industrial Durability: Engineered by Armstrong International with high-grade materials to withstand corrosive condensate and thermal cycling.
• Versatile Application: Suitable for use in steam heating equipment, process heat exchangers, and high-volume liquid drainage systems.

Common Questions:

How do I know if my Armstrong J-Series trap needs a B4029-1 mechanism?
Common signs of a failing mechanism include steady steam loss (blowing through) or a cold trap indicating a failed-closed position. A 30°F temperature differential between the top and bottom of the trap body typically indicates proper operation; if this vanishes, the linkage or seat may be worn.

Is the B4029-1 interchangeable with the D4029-1?
Yes, the B4029-1 and D4029-1 are identical in technical specification and footprint, serving as a direct replacement for 15 PSI float mechanisms in supported series.

Does this kit include the float ball?
No, this is a "mechanism less float" kit. It includes the valve, seat, and lever assembly, but the float must be purchased separately or reused from the existing unit if it remains functional.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.